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Finding the Fourth Proportional to 368,013.13, 552,019.00 and 115,312.96

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Solution

The fourth proportional to 368,013.13, 552,019.00 and 115,312.96 is: 172,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,013.13 : 552,019.00 = 115,312.96 : x
  2. Step 2: Convert to fraction form
    368,013.13/552,019.00 = 115,312.96/x
  3. Step 3: Cross multiply
    368,013.13x = 552,019.00 × 115,312.96
  4. Step 4: Simplify right side
    368,013.13x = 63,654,944,577.96
  5. Step 5: Solve for x
    x = 63,654,944,577.96/368,013.13
  6. Step 6: Final answer
    x = 172,969.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.